You can use this: https://lemmyverse.net/communities
to find communities, when you go to a community it will have a link in the sidebar like: !community@instance.com
you may have to paste that link into your instance search bar for it to show up. (I think this is only if nobody from your instance has searched for it yet.) Its kinda a pain, but I think this will be a lot easier later down the road.
I'm gonna need you to do that about 100 more times and with different communities. Just so I can add them. Jerboa search is wonky lol
Try using Voyager! It's also on the Play Store now: https://play.google.com/store/apps/details?id=app.vger.voyager
You can use this: https://lemmyverse.net/communities to find communities, when you go to a community it will have a link in the sidebar like: !community@instance.com you may have to paste that link into your instance search bar for it to show up. (I think this is only if nobody from your instance has searched for it yet.) Its kinda a pain, but I think this will be a lot easier later down the road.